public void SourceFormat_FromNonStringInputStringLiteral_ShouldParse()
        {
            Input = new NonStringInput(new StringLiteral("Hello, Combinator"));
            var actual = SourceFormat.Parse(String.Empty);

            Assert.That(actual, Is.EqualTo("Hello, Combinator"));
        }
        public void SourceFormat_FromNonStringInputIntLiteral_ShouldParse()
        {
            Input = new NonStringInput(new IntLiteral(42));
            var actual = SourceFormat.Parse(String.Empty);

            Assert.That(actual, Is.EqualTo("42"));
        }